यदि एक प्रथम कोटि की अभिक्रिया का 75% भाग 90 मिनट में पूरा होता है, तो उसी अभिक्रिया का 60% भाग लगभग कितने मिनट में पूरा होगा? (मान लें: log 2 = 0.30; log 2.5 = 0.40)

Match List I (Order of reaction) with List II (Unit of rate constant): List I: A. Zero order B. First order C. Second order D. Third order List II: I. mol-1 L s-1 II. mol-2 L2 s-1 III. s-1 IV. mol L-1 s-1 Choose the correct matching:

Given below is an expression for the rate constant of a first order reaction occurring at a certain temperature, T (K): ln k = 14.34 - 1.25 × 104T The energy of activation in kcal mol-1 for the reaction is: (Given: k in s-1, R = 1.987 cal mol-1 K-1)